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Fix default Metric view name #1515

Merged
merged 13 commits into from
Aug 10, 2022
Merged

Fix default Metric view name #1515

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f908433
Fix default Metric view name
esigo Jul 24, 2022
f6413a7
Merge branch 'main' into Default-Metric-view-name
esigo Jul 25, 2022
d811f1e
fix CI
esigo Jul 25, 2022
d85f08c
Merge branch 'main' into Default-Metric-view-name
esigo Aug 2, 2022
9d4a847
use InstrumentationScope
esigo Aug 2, 2022
1edb4de
fix gcc 4.8 CI
esigo Aug 2, 2022
919e12f
Merge branch 'main' into Default-Metric-view-name
lalitb Aug 2, 2022
f5a07c2
Merge branch 'main' into Default-Metric-view-name
lalitb Aug 2, 2022
79551d0
Merge branch 'main' into Default-Metric-view-name
esigo Aug 4, 2022
eb6c698
Merge branch 'main' into Default-Metric-view-name
esigo Aug 9, 2022
193d9f1
review comment
esigo Aug 9, 2022
757c0fe
use const view
esigo Aug 9, 2022
9e74e43
Merge branch 'main' into Default-Metric-view-name
esigo Aug 10, 2022
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62 changes: 42 additions & 20 deletions sdk/include/opentelemetry/sdk/metrics/view/view_registry.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,29 +46,14 @@ class ViewRegistry
bool FindViews(
const opentelemetry::sdk::metrics::InstrumentDescriptor &instrument_descriptor,
const opentelemetry::sdk::instrumentationscope::InstrumentationScope &instrumentation_scope,
nostd::function_ref<bool(const View &)> callback) const
nostd::function_ref<bool(const View &)> callback)
{
bool found = false;
for (auto const &registered_view : registered_views_)
{
if (MatchMeter(registered_view->meter_selector_.get(), instrumentation_scope) &&
MatchInstrument(registered_view->instrument_selector_.get(), instrument_descriptor))
{
found = true;
if (!callback(*(registered_view->view_.get())))
{
return false;
}
}
}
// return default view if none found;
bool found = findViewsInternal(instrument_descriptor, instrumentation_scope, callback);
// create default view if none found;
if (!found)
{
static View view("otel-default-view");
if (!callback(view))
{
return false;
}
createView(instrument_descriptor, instrumentation_scope);
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Just thinking if we just create a static view with the empty name:

if (!found)
{
  static View view("");
  . . . 
}

And then this part of code -

opentelemetry-cpp/sdk/src/metrics/meter.cc

Line 212 in 90fd291

view_instr_desc.name_ = view.GetName();
- will not overwrite the name in InstrumentDescriptor.

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@esigo - pinging just in case these comments got missed :)

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@lalitb thanks, I use static view now.

return findViewsInternal(instrument_descriptor, instrumentation_scope, callback);
}
return true;
}
Expand All @@ -95,6 +80,43 @@ class ViewRegistry
return selector->GetNameFilter()->Match(instrument_descriptor.name_) &&
(selector->GetInstrumentType() == instrument_descriptor.type_);
}

bool findViewsInternal(
const opentelemetry::sdk::metrics::InstrumentDescriptor &instrument_descriptor,
const opentelemetry::sdk::instrumentationscope::InstrumentationScope &instrumentation_scope,
nostd::function_ref<bool(const View &)> callback) const
{
bool found = false;
for (auto const &registered_view : registered_views_)
{
if (MatchMeter(registered_view->meter_selector_.get(), instrumentation_scope) &&
MatchInstrument(registered_view->instrument_selector_.get(), instrument_descriptor))
{
found = true;
if (!callback(*(registered_view->view_.get())))
{
return false;
}
}
}
return found;
}

void createView(
const opentelemetry::sdk::metrics::InstrumentDescriptor &instrument_descriptor,
const opentelemetry::sdk::instrumentationscope::InstrumentationScope &instrumentation_scope)
{
AddView(
std::unique_ptr<opentelemetry::sdk::metrics::InstrumentSelector>{
new opentelemetry::sdk::metrics::InstrumentSelector{instrument_descriptor.type_,
instrument_descriptor.name_}},
std::unique_ptr<opentelemetry::sdk::metrics::MeterSelector>{
new opentelemetry::sdk::metrics::MeterSelector{instrumentation_scope.GetName(),
instrumentation_scope.GetVersion(),
instrumentation_scope.GetSchemaURL()}},
std::unique_ptr<opentelemetry::sdk::metrics::View>{
new opentelemetry::sdk::metrics::View{instrumentation_scope.GetName()}});
}
};
}; // namespace metrics
} // namespace sdk
Expand Down
8 changes: 7 additions & 1 deletion sdk/test/metrics/view_registry_test.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -29,13 +29,17 @@ TEST(ViewRegistry, FindViewsEmptyRegistry)
registry.FindViews(default_instrument_descriptor, *default_instrumentation_scope.get(),
[&count](const View &view) {
count++;
EXPECT_EQ(view.GetName(), "otel-default-view");
# if HAVE_WORKING_REGEX
EXPECT_EQ(view.GetName(), "default");
EXPECT_EQ(view.GetDescription(), "");
# endif
EXPECT_EQ(view.GetAggregationType(), AggregationType::kDefault);
return true;
});
# if HAVE_WORKING_REGEX
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Oh, I forgot to create an issue to support this for gcc4.8. Will create one.

EXPECT_EQ(count, 1);
EXPECT_EQ(status, true);
# endif
}

TEST(ViewRegistry, FindNonExistingView)
Expand Down Expand Up @@ -76,7 +80,9 @@ TEST(ViewRegistry, FindNonExistingView)
# endif
return true;
});
# if HAVE_WORKING_REGEX
EXPECT_EQ(count, 1);
EXPECT_EQ(status, true);
# endif
}
#endif